(30)The aim of incorporation by reference, as provided for in Article 11 of Directive 2003/71/EC, is to simplify and reduce the costs of drafting a prospectus; however this aim should not be achieved to the detriment of other interests the prospectus is meant to protect. For instance, the fact that the natural location of the information required is the prospectus, and that the information should be presented in an easily and comprehensible form, should also be considered. Particular attention should be granted to the language used for information incorporated by reference and its consistency with the prospectus itself. Information incorporated by reference may refer to historical data, however if this information is no more relevant due to material change, this should be clearly stated in the prospectus and the updated information should also be provided.